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914World.com _ 914World Garage _ 2056 with Ljet, any mods to the AFM?

Posted by: Geezer914 Apr 4 2021, 06:11 AM

Building a 2056 with a 9550 cam, Ljet with 912 injectors. Any mods need to be done to the AFM?

Posted by: ClayPerrine Apr 4 2021, 07:33 AM

QUOTE(Geezer914 @ Apr 4 2021, 07:11 AM)

Building a 2056 with a 9550 cam, Ljet with 912 injectors. Any mods need to be done to the AFM?

No. The extra air flow will displace the door more and that will compensate for the extra displacement.

Clay

Posted by: Mikey914 Apr 4 2021, 09:18 AM

The 912e runs this setup. The fuel map is set up for a 1.8 on the 914 box, if you have any problems look for a 912e box.
There may be a few around as many did go to carbs. They were seen as an upgrade at one time. Funny with the 2.0 L jet configuration the 912e get about 25-30 mpg. One of the reasons most have a lot of miles on them.

Posted by: timothy_nd28 Apr 4 2021, 11:53 AM

To be absolutely sure, you’ll need to monitor the fuel air mixture in the exhaust.

Posted by: Bleyseng Apr 5 2021, 07:21 AM

I would think you should check the air/fuel ratio with a O2setup after getting it running with that cam. On my Westy I had to adjust the afm richer

Posted by: hcdmueller Apr 5 2021, 08:30 AM

QUOTE(Bleyseng @ Apr 5 2021, 06:21 AM)

I would think you should check the air/fuel ratio with a O2setup after getting it running with that cam. On my Westy I had to adjust the afm richer

I built a camper special 2.0l for my last bus and definitely needed some adjustments on the AFM.